Tobacco pipe



y E g 9 a V/ Y 927 H. E. SHOOP TOBACCO PIPE Filed Nov. 14. 1925 ggz w I 9 m/y Z/ //%m- LG SIiVENZOR. M Q M ATTORNEY.

l atentecl Aug. 23, 1927.

UNITED STATES.

HERBERT E. SHQOP, OF PITTSBU BGH, PENNSYLVANIA.

'ronnoco PIPE.

. memos fled November 14, 1925. Serial m. 69,018.

The object whichflhave in view is the provision of a tobacco pipe which will afford a clean, sweet and dry smoke, which will prevent nicotine traveling to the mouth-' piece of the pipe, and which may be thoroughly cleaned when necessary in an expo: itious and convenient manner,

A leading characteristic of my improved pipe is the provision of a well in the stem which preferably approaches the vertical but I is somewhat rearwardly inclined, to the lower portion of which is connected the bowl while the upper portion of the well is .connected to the bit or mouth-piece. Within the well is removably mounted a plug which forms with the interior wall ofthe well a passage for the upward travel of the smoke towards the bit. This passage is preferably tortuous, and I prefer to form the same by means of a helicalgroove cut in the surface of the plug. The plug may beremoved from the well by endwise movement.

The bowl is preferably provided with an upper, removable false bowl portion whose bottom is perforated for the downward escape of the smoke into a chamber formed in the base bowl and which chamber is connected to the lower portion of the well.

The base bowl is preferably provided with a flat bottom so that the pipe may stand upright when not in use.

Other novel features of construction and also of arrangement of", parts will appear from the following description.

In the accompanying drawings, wherein I have illustrated the best embodiment of the principles ofv my invention now known to me, Fig. l is'a side elevation of the pi e; Fig. 2 is a vertical section of the same; ig. 3 is a plan View of the false bowl; Fig. 4 is a plan view of the pipe with the false bowl removed, and Fig. 5 is an elevation of the plug shown removed from its well. I

Referring to the drawings A represents the base bowl which is interiorly threaded at its top as shown at 1 to receive the annular and threaded portion 2 of the false bowl v B. The bottom .of the false bowl is downwardly convexed and provided with perforations 3 for the downward escape of the I smoke into the chamber f the base bowl A.

The chamber 4 is connectedby a passage 5 leading preferably from a point somewhat above the bottom of the chamber into the lower portion of a well C which is formed provi ing a durable structure.

in the 6 of the pipe, and which is referably somewhat rearwardly inclin as shown. 7

The stem and base bowl of the pi I may be integral and formed of any suits le material, such as wood or composition, and the false bowl B may be formed also, of any suitablematerial, but preferably of a composition. By employing a composition such as'bakelite, the body of the pipe may be molded in one piece while. the material is in a lastic state, thus reduci cost and the bowl and stem of transparent or translucent material the operation .of the pi and the spiral travel of the smoke about t e plug is made visible to the smoker, thus adding greatly to the attractiveness of the The well C is opened at least at one end and preferably at both ends. Near its upper end the well is in communicationrwith the passage 7 of the bit or mouth-pieoeD which may be integral with the stem or detach ably connected thereto as is common in y farming smoking ipes. The stem and well should be of so cient length to provide for cooh ing the smoke before it reaches the mouthpiece and also to drop the bowl to give the pipe the proper han orv balance and to position the bowl su ciently distantfrom the .smokers face.

E represents a plu which may be of any suitable material, suc as metal or hard rubher, and which is adapted to be inserted into and fit snugly in the well 0. I prefer to taper the walls of the well and the plug upwardly so that by inserting the plug from below into the well it may be caused to be held therein against accidental displacement. The lower end of theplug'may be I 7 provided with a screw driver slot 8 so that.

it may be turned to loosen it to expedite its removal.

Means are provided between the interior wall of the well and the plug for the upward travel of the smoke from the entrance passage 5 to the exit passage 7 This upward travel of the smoke is preferably in a.

tortuous path. Thus I have shown the surface of the plug E provided with a helical groove 9, which when the plug is in position in the well coacts with the wall of the well to form a helical passage for the ascent of the smoke. The. ends of the plug are ,un-

grooved so as to close the ends of the well against the escape of smoke or the material entrance of air. -At the lower end of the thread 9 the plug is provided with an annular groove 9 which forms a bottom trap into which such saliva as may enter the well may be collected below the passage 5.

It is evident that the accumulation of moisture or foreign matter in the chamber a of the base bowl may be readily removed by first removing the false bowl.

It is further evident that the passages 5 and 7 are readily accessible for cleaning when the plug E is removed.

It is also evident that by removing the plug E its grooved surface is open for convenient cleaning and also the walls of the well may be readily wiped.

It is thus apparent that my pipe may be readily and conveniently kept clean, thus in suring a sweet and dry smoke to the user. The upward passage of the smoke in the well alsoserves to cool the same as the helical passage thus formed has an effective length many times the actual length of the well. Thusthe smoker will not experience the biting of the tongue which is so frequently incident to pipe smoking.

\Vhat I desire to claim is 1. In a smoking pipe, the combination of a bowl, a stem containing a well which is open 'at both ends, a'passage connecting the lower portion of said bowl with the lower portion of the well, a mouth-piece connected withthe upper portion of the stem and having its passage connected to the upper portion of the well, a removable tapering plug removably inserted in said well, a helical groove on the plug forming a passage for the upward travel of the smoke and the ends of the well being closed by the end portions of the plug when the plug is in place, and a deposit chamber being provided in the well by the termination of' said groove below the mouth of the first mentioned passage.

2. In a smoking pipe, the combination of a bowl, astem containing a well which is open at both ends, a passage connecting the lower portion of said bowl with the lower portion of the well, a mouth-piece connected with the upper portion of the stem and having its passage connected to the upper portion of the well, a removable tapering plug removably inserted in said well, the ends of the well being closed by the end portions of the plug when the plug is in place, said plug having its greatest diameter at the lower end thereof, a spiral passage for the upward travel of the smoke being provided on the plug and the ends of the well being closed when the plug is in place, and an annular deposit chamber being provided on the plug by the termination of the spiral passage above the lower closed end of the well and between the well and the plug below the mouth of the first mentioned passage.

3. In a smoking pipe, the combination of a base-bowl, a false bowl detachably mounted thereon, the bottom of said false bowl being perforated and a chamber being provided within the base-bowl beneath the false bowl, stem provided with a well which is open at both ends, a passage connecting said chamber to the lower end of said well, a mouth piece connected to the upper end of said well, and a removable tapering plug in said well, the ends of the well being closed by the end portions of the plug, said plug having its greatest diameter at the lower end thereof, a spiral passage for the upward travel of the smoke being provided on said plug and between the well and the plug, and an annular deposit chamber formed by'the termination of said spiral passage.

Signed at Pittsburgh, Pa., this 12th day of November, 1925.

HERBERT E. SHOOP. 

